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Threaded button Bits ST58 for Top Hammer drilling

Diameter: 89mm-127mm
Processing Type: Forging
Face design: Flat; Convex; Concave
Top hammer bit Face Features:
Flat Face---This kind of top hammer drill bit face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash.

Quantity:
  • ST58
  • ROSCHEN
  • ROS-ST58

Product Description

 Threaded button Bits ST58 for Top Hammer drilling

Diameter: 89mm-127mm 

Processing Type: Forging

Face design: Flat;  Convex;   Concave


Top hammer bit Face Features:

 Flat Face---This kind of top hammer drill bit face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash.

 

Concave Face---The all-round application bit face is special for medium hard and homo-generous rock formations. Good holes deviation control and good flushing capacity.

 

Convex Face---For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce the load and wear on the gauge buttons, but poor holes deviation control.

 top hammer bit ST58

Advantages of GT60 Top Hammer Drill Bit Mining Drill Bit: 

1. Stable quality, cost-effective 

2. Advanced thermal inlay technology to ensure stable quality of each ball bit

3. This Top Hammer Drill Bit is widely used in mining, tunneling, underground plant excavation and other construction sites 

4. Japanese or German CNC lathe thread and drilling alloy perforations to ensure the accuracy of the ball tooth bit 

5. According to different needs of users, different specifications and different forms can be made of top hammer drill bits.

6. The ball tooth bit uses different alloy teeth (hemispherical teeth, bullet teeth, parabolic teeth, etc.) according to different rock formation structures and hardness.

 

Specification

 Detailed information of ST58 Top Hammer Drill Bit

Tip size(mm)

No.of flushing holes

Weight(kg)


mm

Gauge

Front

Side

Front

89

8*12

5*12

2

4.8

102

8*13

6*12

2

6.5

115

8*13

6*13

2

6.8

127

8*14

7*14

2

8.5

89

8*12

6*12

2

4.6

102

8*13

6*12

2

6

115

8*13

6*13

2

6.4

127

8*14

7*14

2

8.2

89

8*12

5*12

2

4.9

102

8*13

6*12

2

6.4

115

8*13

6*13

2

6.7

127

8*14

7*14

2

8.8

89

8*12

5*12

2

4.7

102

8*13

6*12

2

6.2

115

8*13

6*13

2

6.4

127

8*14

7*14

2

8.3

89

8*12

5*12

2

5

102

8*13

6*12

2

6.9

115

8*13

6*13

2

7.2

127

8*14

7*14

2

8.9

89

8*12

6*12

2

4.8

102

8*13

6*12

2

6.6

115

8*13

6*13

2

7

127

8*14

7*14

2

8.7


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